What Happened?

Shares of AI lending platform Upstart (NASDAQ: UPST) jumped 6.2% in the afternoon session after the company released its September 2026 monthly loan origination volume of $1,378.3 million and reported an update indicating an improvement to its proprietary credit risk metric, the Upstart Macro Index, according to a company press release. 

According to the corporate disclosure, the Upstart Macro Index reading fell to 1.49 as of October 5, 2026, down slightly from 1.50 in the prior month. The company press release noted that this index estimates the impact of the macroeconomy on credit losses for Upstart-powered loans, with a 1.49 reading indicating default risk is approximately 49% above what the firm expects in a normal economy benchmarked at 1.0. 

Furthermore, Upstart stated that while the index has remained above 1.0 since early 2022, it remains well below its historical peak of 1.68 reached in 2024. Regarding loan volume, the company reported that originations in September averaged $53.1 million across 25.95 funding days, up from $50.7 million per day in August. The corporate filing detailed that this daily acceleration brought cumulative third-quarter originations to $4,117.8 million across 79.85 funding days. 

Consequently, these lower macroeconomic default expectations could encourage capital partners to deploy funds, directly lifting high-margin loan facilitation fees for Upstart.

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What Is The Market Telling Us

Upstart’s shares are extremely volatile and have had 51 moves greater than 5% over the last year. In that context, today’s move indicates the market considers this news meaningful but not something that would fundamentally change its perception of the business.

The previous big move we wrote about was 7 days ago when the stock dropped 3.3% on the news that a deepening Treasury selloff and higher oil prices pushed the benchmark 10-year yield to 5.218%, reinforcing expectations of further Federal Reserve rate hikes. 

Morningstar reported that stocks slid and technology shares led early declines as the week began, a week that also includes key jobs data. A Treasury selloff means investors are selling U.S. government bonds. When bond prices fall, their yields, or the return investors receive, rise. Higher yields tend to weigh heavily on technology and software stocks. Much of the value of these companies is based on profits expected many years into the future. When investors can earn more than 5% on relatively safe government bonds, those distant earnings become less attractive in comparison, which can lower the prices investors are willing to pay for growth stocks. 

Rising oil prices add to the pressure because they can push inflation higher. Persistent inflation could lead the Federal Reserve to keep raising interest rates, increasing borrowing costs for businesses and consumers. 

Upstart is down 46.9% since the beginning of the year, and at $24.33 per share, it is trading 53.9% below its 52-week high of $52.74 from October 2025. Investors who bought $1,000 worth of Upstart’s shares 5 years ago would now be looking at only $82.10.

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